Just adding my little 2 cents commentary:
Please Gabars, keep in mind you are entitle to your own desires and I hope you are not too discouraged about some commentaries from people not sharing them. ;-)
Not only overnights and multiple days are very exceptional in nature because they are opening the possibilities to be even more personal and "in touch" with each others, (put entented ;-) )
they are also more, let's say, respecting a natural pace/way of things to be. I understand that's something that is affraying a lots of "hobbysts" that are fan of quick/non-emotional-contact encounters. (let's say apart to have a limited psy or physical money budget to spend...) and this is fine, to each their own. What's not fine is to come and not respect other choices, anyway, that's always the same story on a lots of review boards.
Vive la différence à la fin, bordel! hahaha ;-)))
So, just putting this as a very good example where this kind of encounter could lead eventually.... I am presently wondering what kind of gift I am going to buy to my "partner in crime" ;-) to celebrate our 10th years anniversary of encounters together.
We shared multiple dinner dates, overnights, a couple of trips together. That's not someone I see often, because he is living away, but when we do, we are sharing many hours even days.
So maybe it is not the cup of tea of everyone, but there is a clear demand for longer encounters, and that's why that almost all SW are having that kind of package that are often a "better deal" if we count by the hour, and this, exactly because of the nature more relax of the encounter, including maybe time to enjoy other activities, eat and to rest/sleep.
Ok, this all said, Clara and Rollingstone gave great advices. I could add that if you know that you snore... maybe bring her some new earplugs in case she doesn't have. ;-) and maybe something really down-to-earth, don't be shy to wash your hands/shower/refresh your breath few times during your time. It is a fantastic bubble out of the ordinary life to live, enjoy it at the maximum ;-)